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Language/Type: VB recursion

For each of the calls to the following recursive function below, indicate what output is produced:

Public Sub RecursionMystery1(x As Integer, y As Integer)
    If y <= 0
        Console.Write("0 ")
    ElseIf x > y
        Console.Write(x & " ")
        RecursionMystery1(x - y, y)
        RecursionMystery1(x, y - x)
        Console.Write(y & " ")
    End If
End Sub
RecursionMystery1(6, 3)
RecursionMystery1(2, 3)
RecursionMystery1(5, 8)
RecursionMystery1(21, 12)
RecursionMystery1(3, 10)

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